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Air Conditioning Questions 1986 240 Wagon

posted by  iowanbrick on  Mon Apr 18 14:11 CST 2005
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last visit: Thu Oct 4 09:33 CST 2012
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It's that time of year and I've just finished performance testing the Freon 12 A/C of my 1986 240 wagon this evening. Exterior conditions: 78F and 40% humidity, the A/C set on recirculate, the fan on high and the A/C temp turned all the way down, the air from the central dash vents was
44F. Cold enough to be uncomfortable blowing on bare skin. However, when I looked through the sight glass on the receiver/dryer I see "smoke", not clear glass, not bubbles, not oil. I've been told that this is the sign that the dessicant in the dryer is failing and it is now releasing the water it's absorbed over the last 19 years back into the A/C system. I really, really need to get one more season from this A/C and I want to know if there can be serious harm done by continuing to use the A/C with this condition. If the A/C should simply stop working I'll bite the bullet and pay to convert to 134a, but a damaged compressor, evaporator or condensor will be serious $$$.






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